Emulsifying apparatus.



H. H. SCHOU.

EMULSIFYING APPARATUS. APPLICATION FlLED1uLY12.1916.

Patented. J al1. 29, 1918.

HMS HENRIE. SCHOTT, OlF COPENHAGEN, DENMARK, ASSIGNOR T0 FLAKES A/S, 0F COPENHAGEN, DENMARK.

IEMULSIFYING APPARATUS.

Specification of Letters Patent.

Patented @llana @9, tgt@ application med July 1a, 191e. serial No. masas.

To all whom it 'may concern.'

Be it known that I, HANS HENRIK Sonori, a subject of the Kingof Denmark, residing at Pilealle No. 27, Copenhagen, in the Kingdom oDenmark, have invented certain new and useful Improvements in Emulsifying Apparatus, of which the following is a specification.

This invention relates to the construction of the casings of emulsifying apparatus. of the type in which a rotating emulsifymg disk is inclosed between the two sides or members -of the casing, the surfaces of the dish and casing approaching each other very closely so as toform narrow emulsiying channels through which the ingredients ot' the emulsion pass during the rotation of the disk at high speed. Such apparatus forms the subject matter of Letters Patent 1192492 issued to S. H. Blichteldt and the present invention is more particularly directed to the improvement of the apparatus described in the above specification, in which apparatus as originally proposed the two sides of the disk casing are secured together by bolts which provide for adjustment of the emulsi-y fying channels by compression of packing placed between the two casing members. rlhe chief objects of the present invention are Ito improve the method of adjusting the width of the emulsifying channels and to facilitate the opening and closing ot the disk casing.

llt is essential that the adjustment should be made with the greatest possible accuracy and it is found that adjustment by means of bolts is very complicated and takes considerable time while the accuracy obtainable, either with regard to the width of the emulsifying channels or, what is even more important, to the parallelism of the surfaces of the channel, is not sufficiently exact for full eiiiciency of the apparatus. ln the improved construction the two disk shaped members of the casing, which receive between them the emulsifying disk, are connected together by an interrupted screw, one of the said members being mounted so as to swing into open or closed position and to turn through an angle when closed, to cause the engagement of the interrupted screw threads. rlhe adjustment of the emulsifying channel is eHected by turning the movable casing member through any predetermined angle after engagement with the fixed member, and the members are secured in the correct relative position after adjustment by a pneumatic rin set in a channel in one of the said mem ers and inflated through a. suitable valve', so as to bind against the face of the second member and by varying the inflation pressure to give a final line adjustment to the emulslfying channels. This ring serves both to form a liquid tight seal and to prevent any rota tion of the movable casing member after adjustment.

In order that the said invention may be clearly understood and readily carried into eiiect, the same will now be described more fully with reference to the accompanying drawings, in which:-

Figure I is a section through the axis of an emulsifying apparatus embodying this invention.

Fig. 2 is an end elevation and Fig. 3 a plan of the apparatus.

A is the Xed member of the disk shaped casing, the boss a of which is provided with the bushing a forming a bearin for the shaft of the emulsifying disk y(whlch is not shown in the drawings) and with the lubricating ring a2 for the said shaft. B is the 4second disk member mounted to turn in the ring c of the jointed carrier C pivoted in the brackets as on the back of the casing member A. D is the pneumatic ring which forms a liquid tight jointbetween the mem bers A and B.

rll`he two casing members are connected together by the interrupted screw threads a4 and b which Vare of buttress type as shown in Fig. l (that is, the generating lines of the buttress faces are perpendicular to the axis of the apparatus) to give accu racy of adjustment, the screw thread a4 being on the periphery of the member A while the thread is on the inner face of the overtid the cavity E, in which the emulsifying disk lies, quite open. To close the casing the member B is swung over the fixed member A, the gaps between the screw segments a* and Zi allowing the ange b to encircle the member A. The pneumatic ring D is in deflated condition and the member B is free to turn in the ring c to cause the threads a* and b to engage. The member B may be turned by handles b2 and the adjustment is made until the narrow gap e between the adjacent faces of the members A and B is reduced to the desired width, giving the proper dimensions to the emulsifying or homogenizing channels formed between the faces a5 and b3 of the members A and B and an emulsifying disk such as is indicated diagrammatically in chain lines at F. The faces a5 and In are shown narrow, so as to inclose only a small annulus of the disk, but they may be of any required depth according to the extentjof emulsifying surface desired. The ingredients pass from the middle to the periphery of the casing, escaping through the outlet a in the member A.

The method of introducing the liquid into the emulsifying apparatus forms no part ofthe present invention but as this is more especially intended as a constructional improvement on the machine described in the specification of Patent No. 1192492 'already referred to the method of introducing the ingredients described in that specication can be employed in the present case, the oily ingredient being intermittently admitted to the cavity E through the passage f, g, by means of the rotating supply tube h having the perforations z' registering with the passages f, g. The tube is driven from the shaftv 7c by the worm Z, the device being carried by the casing extension m. The watery ingredient is admitted continuously to the cavity E through the passage n.

When the proper adjustment of the member B has been made, according for example to suitable markings on the two members indicating the width of the emulsifying channelobtained, the ring D is inflated through a valve at d (Fig. 2) and the buttress faces of the thread segments al;t and b are tightly pressed together, the ring simultaneously binding the casing members to prevent displacement and forming a liquid tight joint between them. As the ring D expands under pressure equally at all parts the pressure exerted on the two disks is equal throughout the whole circumference and the parallelism of the surfaces a, b3 is thus insured, the buttress formation of the threads at, b forming a further guarantee against any Obliquity in screwing up the casing members. It is found in practice that a variation in the compression of the -air in the tube or ring D makes a very slight difference in the Width of tho emulsifying channels and owing to the eX- treme narrowness of these channels the fine adjustment thus obtainable is of great importance. The screw action permits of an adjustment within intervals of 0.002 mm. or less and the variable inflation of the ring permits of a considerably finer adj ustment which can of course be effected without interrupting the working of the emulsifier. To open the casing the ring D is first deflated andthe member B then turned until the screw segments a4 and b are free, whereupon the member B can be swung back clear of the fixed member A.

What I claim and desire to secure by Letters Patent of the United States is 1. In a disk emulsifer, a disk casing comprising two disk members, means for securing the two members together and an inigatable ring located between the said memers.

2. In a disk emulsifier, a disk casing comprising two disk members, a screw connection for securing the two members together and an inflatable ring located between lthe said members.

3. In a disk emulsier, a disk casing comprising two coperating disk members and interrupted male and female screw threads on the said members adapted to engage and secure the members adjustably together.

4. In a diskemulsifier, a disk casing comprising two coperating disk members and interrupted male and female screw threads of buttress type on the said members adapted to engage and secure the members adjustably together.

5. In a disk emulsifer, a disk casing comprising two coperating disk members of y which one is fixed while the other is pivotally mounted on the ixed member so as to swing outwardly to open the casing, an overhanging Harige on one of the said members having an interrupted female screw thread and a coperating interrupted male screw thread on the periphery of the second member. y

6, In a disk emulsier, a disk casing com prising two coperating disk members, interrupted male and female screw threads on the said members adapted to engage and secure the members adjustably together and ai; its outer end a supporting ring in which an inflatable ring located between the 'two the movable member is mounted to turn on members in an annular groove. its axis, and male and female'interrupted l@ 7. n a disk emulsifier, a disk casing comscrew threads en the said members, by e prising two eoperatn'g disk members of which they are adjustably secured together,

which one is fixed andthe other movable, a on closing the easing.

jointed carrier on the Xed member having S HENRIK SCHOU 

